<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
</html>
<script>
    var a = 3;
    var b = 4;
    var c = a + b;
    console.log(c);

    y = a + b - c;
    console.log(y);

    y = a++ + --b;
    console.log(y);
    console.log(a);
    console.log(b);


    var d ="'素质'三连";
    console.log(d);

    var e = 1 + "1" + ( 2 + 3 + "2" ) * 2;
    console.log(e);

    var f ="我是不喜欢打"+111+"的";
    console.log(f);

    f=1 =="2";
    console.log(f);
    x =7;
    y = x++ > 8 && x-- < 6;//(false,6)
    console.log(y);

    var acc =[ 1 , 2 , 3 ];
    console.log(acc);
    abc=100;
    abc++;
    console.log(abc);

    a=1;
    b=2;
    c=3;
    d = ++a * ++b;
    console.log(d);



</script>